GB781420A - Improvements in or relating to the production of polymers - Google Patents
Improvements in or relating to the production of polymersInfo
- Publication number
- GB781420A GB781420A GB2716356A GB2716356A GB781420A GB 781420 A GB781420 A GB 781420A GB 2716356 A GB2716356 A GB 2716356A GB 2716356 A GB2716356 A GB 2716356A GB 781420 A GB781420 A GB 781420A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fraction
- product
- cyclopentadiene
- heat treatment
- gasoline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F240/00—Copolymers of hydrocarbons and mineral oils, e.g. petroleum resins
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Hydrocarbon polymers, particularly dicyclopentadiene and also liquid polymers are produced by subjecting a cyclopentadiene-containing cracked hydrocarbon fraction of petroleum origin having an initial boiling-point in the range of 15-30 DEG C. and a final boiling-point in the range of 50-70 DEG C. to a preliminary heat treatment at 70-120 DEG C., while maintaining the fraction in the liquid phase so that the cyclopentadiene is converted to its dimer and thereafter distilling the product to remove the dimer, and then subjecting the cyclopentadiene free cracked hydrocarbon fraction obtained overhead to a heat treatment at a temperature above the temperature of the preliminary heat treatment, and at superatmospheric pressure, and distilling the product to obtain separately a gasoline fraction and, boiling above said gasoline fraction, a hydrocarbon polymer fraction. The hydrocarbon fraction is preferably obtained by steam cracking a naphtha cut boiling in the range of 90-250 DEG C. at a pressure of atmospheric to 200 pounds per square inch. In an example, a 20-58 DEG C. cut from a steam cracked gasoline was heated to 100 DEG C. for 8 hours to dimerize the cyclopentadiene, the product was distilled, leaving the dicyclopentadiene as bottoms, and the overhead product being subjected to further heat treatment at 150-160 DEG C. for 6 hours at 290 lb. per square inch. The product was distilled at atmospheric pressure to recover unchanged gasoline as overheads, the bottoms being further distilled under reduced pressure to separate distilled polymer and resinous polymer fractions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2716356A GB781420A (en) | 1953-07-03 | 1953-07-03 | Improvements in or relating to the production of polymers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2716356A GB781420A (en) | 1953-07-03 | 1953-07-03 | Improvements in or relating to the production of polymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB781420A true GB781420A (en) | 1957-08-21 |
Family
ID=10255225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2716356A Expired GB781420A (en) | 1953-07-03 | 1953-07-03 | Improvements in or relating to the production of polymers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB781420A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3048562A (en) * | 1959-09-14 | 1962-08-07 | Exxon Research Engineering Co | Process for oxidizing polymeric butadiene drying oil in the presence of steam-cracked petroleum resin, and resulting product |
| FR2163629A1 (en) * | 1971-12-15 | 1973-07-27 | Ici Ltd |
-
1953
- 1953-07-03 GB GB2716356A patent/GB781420A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3048562A (en) * | 1959-09-14 | 1962-08-07 | Exxon Research Engineering Co | Process for oxidizing polymeric butadiene drying oil in the presence of steam-cracked petroleum resin, and resulting product |
| FR2163629A1 (en) * | 1971-12-15 | 1973-07-27 | Ici Ltd |
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